Air-Gap Computers via `Singing Pixels'

photon78s

Stumbled on this while searching for more relevant to eyestrain literature:

In this paper, we present PIXHELL, a new type of covert channel attack allowing hackers to leak information via noise generated by the pixels on the screen. No audio hardware or loudspeakers is required. Malware in the air-gap and audio-gap computers generates crafted pixel patterns that produce noise in the frequency range of 0 - 22 kHz. The malicious code exploits the sound generated by coils and capacitors to control the frequencies emanating from the screen.

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Interesting. Vibrations are a thing as well.

I get instant Tinitus from using my iPhone in the darkness. When things were at the worst I swear I could move the iphone up and down behind something to modulate the tinnitus level 😂

Longshot, but if different types of screen content generates different high frequency sounds it's not far fetched to propose that it could couple things too much together.

https://neurosciencenews.com/wire-fire-neurons-19835/

photon78s

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async When things were at the worst I swear I could move the iphone up and down behind something to modulate the tinnitus level

All very interesting but probably not the doppler effect.